We study photometric variability among the optical counterparts of X-ray sources in the old open cluster M67. The two puzzling binaries below the giant branch are both variables: for S 1113 the photometric period is compatible with the orbital period, S 1063 either varies on a period longer than the orbital period, or does not vary periodically. For the spectroscopic binaries S 999, S 1070 and ...

BACKGROUND Many Ontarians continue to report exposure to second-hand smoke in public spaces. Completely smoke-free environments are the preferred and socially responsible option for non-smoking policies; however, when considering the variety of landscapes in which post-secondary institutions are located, 'a one size fits all' smoking policy is unrealistic to implement and enforce. The purpose o...

Background. Aging entails not only a decrease in the ability to be active, but also a trend toward increased dependence to sustain basic life functions. An important aspect for appropriately elucidating the individual's care needs is the ability to measure them both simply and reliably. Since 2006 a new version of the Time in Care needs (TIC-n) instrument (19-item version) has been explored and...

1. Stagno S. Cytomegalovirus. In: Remington JS, Klein JO. Infectious diseases of the fetus and newborn. 4th ed. Philadelphia: WB Saunders, 1995: 312-53. 2. Bale JF, O'Neil ME, Fowler SS, Murph JR. Analysis of acquired human cytomegalovirus infections by polymerase chain reaction. J Clin Microbiol 1993;31:2433-8. 3. Studahl M, Ricksten A, Sandberg T, Bergstrom T. Cytomegalovirus encephalitis in ...

AIMS To determine whether parasol retinal ganglion cells (magnocellular pathway) are selectively lost in the primate model of glaucoma. METHODS Ocular hypertension was induced in one eye of six Macaca fascicularis monkeys for 6-14 weeks. The retinal ganglion cells in these eyes were labelled retrogradely with the tracer horseradish peroxidase (HRP) implanted into the optic nerve and subsequen...

BACKGROUND Young maternal age is variously defined in studies of its effect on obstetrics and perinatal outcomes. Also, pregnancy has been reported as the leading cause of death in adolescent girls in low- and middle-income countries. AIMS The aim of the study was to evaluate whether young maternal age was associated with an increased risk of obstetrics and perinatal adverse outcomes. STUDY...

The banded woolly bear caterpillar, Pyrrharctia isabella (Lepidoptera: Erebidae), overwinters in leaf litter and survives freezing under natural conditions. Following 18 weeks of cold acclimation at 5°C, all caterpillars could survive 1 week of continuous freezing at -20°C or seven cycles of freezing-thawing at -20°C, but none survived freezing at -80°C. Field-collected caterpillars had a tempe...

The Wallemiomycetes includes three species of molds from the genus Wallemia. These fungi are adapted to environments of high osmotic stress, contaminate various foods, cause respiratory disease, and have an unusual mode of asexual reproduction. Wallemia was recently proposed as a new class based on 18S ribosomal RNA gene sequences to accommodate the isolated position of the clade in the Basidio...